English 
I. Core advantages: accurately match the core needs of users
1. Extremely portable, suitable for multiple scenes
After folding, the volume is only 1/3-1/4 of the unfolded state (for example, the 200ml cup is about the size of the palm after folding), and the weight is usually ≤50g. With the lanyard, it can be hung on the backpack and keychain, which is perfectly suitable for outdoor camping, travel commuting, fitness and other "light travel" scenarios, and solve the traditional cup bulky Pain points that are inconvenient to carry.
2. Food-grade safety, no concern to use
It adopts platinum vulcanised food-grade silicone, which has passed FDA, LFGB and other authoritative certifications. It is free of BPA, plasticiser and odour, and can directly touch hot water (≤100℃), coffee, juice and other drinks; it has stable chemical properties at high temperatures, will not release harmful substances, and is safer than ordinary plastic folding cups.
3. Durable and damage resistance
Silicone material has a wide range of temperature resistance (-40℃~230℃), can be put into microwave oven heating (metal-free accessories), dishwasher cleaning, and drop-resistant and collision-resistant - it is not easy to break when falling to the ground, and can bounce back quickly after squeezing. The service life is 3-5 times that of ordinary plastic folding cups.
4. Sealed and leak-proof, more reassuring to use
The mainstream style adopts the double sealing design of "silicone sealing ring + screw cover/snap cover", which is not easy to leak water when upside down or put in the backpack, which solves the common problem of "poor sealing and easy to leak" of traditional folding cups; some styles have a dustproof cover at the mouth of the cup, which takes into account hygiene and leakage prevention.
II. Product features: differentiated design highlights competitiveness
1. Innovative folding structure, taking into account both practicality and texture
Common three structures of "organ folds", "ring folding" and "telescopic expansion":
◦ Organ style: flatter after folding, storage and space-saving;
◦ Ring folding: After unfolding, the cup body is more upright, and the grip is close to the traditional cup;
◦ Retractable: one-click stretching/compression, convenient operation, suitable for children or people with hand disabilities.
2. Functional complexisation, surpassing the demand of "single drinking water"
Integrate practical additional functions:
◦ The cup body has a clear ml scale (accuracy ±5%), which is convenient to control the amount of water or mix drinks;
◦ Built-in removable tea partition, suitable for making tea and fruit drinks;
◦ Some styles of cup lids can be used as small teacups to realise "two-use cups".
3. Environmentally friendly and economical, replacing disposable cups
It can be reused more than 500 times, which can effectively reduce the use of disposable paper cups and plastic cups, which meets the current demand of "environmental protection and plastic reduction"; the long-term use cost is much lower than the frequent purchase of disposable cups, which has both economic and social value.
4. The design is youthful, suitable for gifts and personalised needs
The appearance supports multi-colour (macaron, Morandi colour system), pattern customisation (cartoon, simple LOGO, photo printing). Some brands have launched "parent-child" and "couple", which can not only meet daily use, but also be used as creative gifts, taking into account practicality and appearance.
5. Easy to clean, no hygienic blind spots
The silicone surface is smooth and not stained, and the cup body has no clean blind spots such as seams and grooves; after folding, it can be fully unfolded, and it can be easily cleaned with a soft brush, avoiding the problem of "folding dirt and dirt" in traditional folding cups.
FAQ:
The following are the frequently asked questions and practical answers of folding silicone cups, focussing on the core characteristics of "folding and portable", focussing on the core concerns of users such as sealing, durability and usage scenarios:
I. Material safety and basic attributes
Q1: Is the material of the folding silicone cup safe? Can you put hot water and carbonated drinks?
• Safety standards: Qualified products need to meet FDA 21 CFR 177.2600 or GB 4806.11-2022 food-grade standards, using platinum sulphurised silicone, BPA-free, plasticiser and odour-free, and can safely hold hot water (≤100℃), coffee, juice, Carbonated drinks (silicone is resistant to acid and alkali and will not be deformed by carbonic acid corrosion).
• Identification method: high-quality silicone feels delicate and elastic, rebounds quickly after folding and has no whitening marks; inferior silicone feels stiff, is easy to break after stretching, and may emit a plastic smell after heating.
Q2: Is the silicone at the folded part easy to crack? How long is the normal service life?
• Durability design: The folding part adopts the "thickening folding process" (thickness is 0.5-1mm thicker than the cup body), and the number of folds is ≥10000 times (it can be used for about 9 years when folded 3 times a day), and it is not easy to crack under normal use.
• Life judgement: Normal use can be maintained for 2-3 years; if there are slight cracks, slow rebound or surface hardening at the fold (hardness increase ≥15 Shore A), it needs to be replaced in time to avoid leakage.
II. Folding and sealing performance
Q3: Is the folding silicone cup sealed? Will it leak after installing water?
• Sealing structure: The high-quality model adopts "screw cap + food-grade silicone sealing ring" double sealing, with the screw bite design of the cup mouth, and can be inverted for 12 hours (loaded with 8 points full of water) without leakage.
• Causes and solutions of water leakage:
◦ Displacement of the sealing ring: remove the cover and reinstall the sealing ring to ensure that it fits the groove;
◦ The lid is not tightened: screw clockwise to the "stuck point" (some styles have a tightening prompt sound);
◦ Sealing ring ageing: Contact the merchant to buy the same model of sealing ring replacement (the unit price is about 5-10 yuan).
Q4: How much can the volume be reduced after folding? Is it easy to carry?
• Compression ratio: Conventional folding cups can be compressed from the unfolded state (capacity 200-500ml) to 1/3-1/4 of the original volume (e.g. 500ml cups are about the size of a fist when folded), and the weight is mostly 50-80g, which is more than 80% lighter than traditional glass cups.
• Carrying scene: suitable for backpack side pockets, pockets, handbags, some styles with lanyards, can be hung on key chains and mountaineering bags, suitable for travelling, camping and commuting.
Q5: What should I do if I get stuck when folding and unfolding?
• The reason for the stuck: residual water stains, dirt, or long-term compression leads to fold adhesion;
• Solution: After unfolding, rinse the folds with water and dry the water; if the adhesion is serious, you can apply a small amount of food-grade silicone oil (or edible oil) to lubricate, and then fold it several times to restore smoothness.
III. Use and adaptation scenarios
Q6: Can it be heated in the microwave or washed in the dishwasher?
• Microwave oven adaptation: only pure silicone cup body (no metal lanyard, plastic decoration, temperature measurement chip), medium heat heating for no more than 3 minutes, empty cup heating is prohibited (easy to deform due to heat expansion and cold shrinkage).
• Dishwasher adaptor: You can put it on the top floor of the dishwasher (select "soft mode"). It is recommended to remove the lid and clean it separately (to avoid the sealing ring being displaced by high-pressure water flow); it is forbidden to use the dishwasher to clean the styles with leather and wooden accessories.
Q7: What kind of scenarios are folding silicone cups with different capacities suitable for?
Capacity Core Scenario Applicable Population/Demands
150-200ml children's drinking water, portable makeup cup for mothers (with supplementary drinking water), women (with makeup remover)
300-400ml Daily commuting, office drinking water Office workers (suitable for thermos holder), students
500-600ml outdoor camping, sports water replenishment, mountaineering, running enthusiasts (large capacity endurance)
800ml or more, car, home spare, self-driving travel (adaptable to car cup holder)
Q8: Will it condense when I put on a cold drink? How to avoid getting the bag wet?
• Condensation problem: Silicone is a bad conductor of heat. When loading cold drinks, the cup body is prone to condensation of water droplets due to temperature difference, which is a normal phenomenon;
• Solution: Choose a style with a "heat-insulating cover" (mostly knitted or EVA material), or cover yourself with a heat-insulating cup cover to avoid water droplets wetting the backpack.
IV. Cleaning and maintenance
Q9: The gaps in the folds are easy to hide dirt and scale. How to clean them?
• Daily cleaning: After unfolding, rinse the folds with running water, and gently brush the gaps with a soft brush (such as a toothbrush) to remove residual tea stains and juice stains;
• Deep cleaning: Once a week, soak with warm water + neutral detergent for 15 minutes, and then rinse the gaps with a rinser (or needle tube), and keep it in an unfolded state when drying (to avoid residual moisture and mould after folding).
Q10: How to remove the strange smell of the new cup?
• Quick deodorising method:
1. Soak in warm water + baking soda (1 litre of water plus 10g) for 30 minutes, rinse and dry;
2. Put lemon slices/orange peels in a cup, seal them for 24 hours, and use the fruity fragrance to adsorb odours;
3. Ventilated drying: Store in a cool and ventilated place for 48 hours, away from direct sunlight (to prevent silicone ageing).
Q11: How to store it if it is not used for a long time?
• Storage suggestions:
1. After washing and drying, store it completely (to avoid ageing and sticking to the folds caused by long-term folding);
2. Put it in a sealed bag, and avoid putting it with camphor pills, perfume and other strong odour items;
3. Storage ambient temperature ≤25℃, away from high-temperature areas such as stoves and heating.
V. After-sales and special problems
Q12: What should I do if the cup body turns yellow and changes colour?
• Causes of yellowing: long-term exposure to hot water, tea/coffee pigment deposition, or ultraviolet irradiation causing silicone ageing;
• Improvement method: Wipe the cup with toothpaste + wet cloth, or brush it after soaking in white vinegar (it can lighten the yellow stains); if the discolouration is serious but not cracked, it will not affect the safety of use, but only the appearance.
Q13: What are the precautions for children?
• Safety adaptation:
1. Choose the "no small accessories" style (to avoid lanyards, snaps, etc. being swallowed by mistake);
2. The mouth of the cup should be round and angular. It is recommended to choose the children's special one with "anti-choking straw";
3. The capacity is controlled at 150-200ml to avoid spilling water when children hold it.
Q14: The received cup can't be fully unfolded after folding. Is it a quality problem?
• Common reasons: long-term compression during transportation, resulting in temporary standardisation of silicone folds, non-quality problems;
• Solution: Put the cup in warm water of about 60℃ and soak it for 5 minutes. After taking it out, gently pull the fold with your hand, and it can be fully unfolded. Repeat the operation 2-3 times to return to normal.
Through the above answers, it can help users solve the common problems of folding silicone cups in terms of "portable use, sealed maintenance, clean storage" and other aspects, taking into account practicality and safety, and adapt to the needs of diversified scenarios.
