Plasticless 100% Compostable Black Drinking Straws - A fantastic alternative to plastic straws. They are made of materials such as modified corn starch and PLA. The maximum heat-resisting temperature of these plant-based straws is 150°F. Composting is the process of breaking down organic waste through microbial digestion to create compost. Our straws meet all the requirements in the European Norm EN 13432 and/or the US Standard ASTM D6400. Both specifications require that biodegradable/compostable products completely decompose in a composting setting in a specific time frame, leaving no harmful residues behind. The proper composting environment is warm, humid, and rich in nutrients and microorganisms. Therefore, simply putting the straw into water or burying it in the soil can't quickly complete the entire degradation process. However, even in a dry room, the straws will begin to degrade within 12 months. Please use them as soon as they arrive.Dust-free Workshop: our straws disposable are made in a fully enclosed dust-free workshop, from production to packaging. We ensure that every disposable, eco-friendly cocktail straw that reaches your hand is absolutely hygienic. Please Note: this pack includes 200 compostable coffee straws with a size of 8 1/4 inch * 1/4 inch (210mm x 6mm). They are recommended for drinks below 150°F (65°C), and their shelf life is 12 months. Multi-use: these 8 1/4 inch biodegradable black bar straws are long enough to fit most cups, such as medium tumblers, glasses, and zip-top cans. They are excellent for birthday parties, bridal showers, cocktail parties, open bars, and more. A Fantastic Alternative to Plastic Drinking Straws: say goodbye to soggy and collapsed straws, and no longer worry about how long they will last. Our straws are sturdy, thick, and as convenient as regular coffee straws. Originating from Nature: KTOB straws are BPA-free, petrochemical-free, contains no microplastics, and causes no pollution. It is made of PLA and modified corn starch in accordance with the standards of ASTM 6400, EN13432, BPI (CERT# 10529115), and OK COMPOST. This material represents a 60% reduction in CO2 emissions compared to traditional plastics.