生物降解塑料袋发展至今，确实没有完全普及，普通大众对生物降解塑料袋知之甚少。所以首先对生物降解做一个简单的解释。
Biodegradable plastic bags have not been fully popularized since their development, and the general public knows little about biodegradable plastic bags. So first, a simple explanation of biodegradation is given.
生物降解塑料袋，我们不理解的，直接丢弃到环境中，过一段时间就会降解。其实只有在工业堆肥的条件下才能实现。自然处置不会很快降解，但肯定比普通塑料降解快很多。
Biodegradable plastic bags, which we do not understand, are directly discarded into the environment and will degrade after a period of time. In fact, it can only be realized under the condition of industrial composting. Natural disposal will not degrade quickly, but it will certainly degrade much faster than ordinary plastics.
其次，生物降解袋不能大限度地满足各种功能需求。虽然它的性能可以接近普通塑料袋，但还是有一些区别，尤其是在耐用性方面。而且生物降解袋的降解性能与实际使用是矛盾的。
Secondly, biodegradable bags cannot meet various functional requirements to a large extent. Although its performance can be similar to that of ordinary plastic bags, there are still some differences, especially in durability. Moreover, the degradation performance of biodegradable bags is contradictory to the actual use.
此外，目前垃圾分类无法有效区分生物降解产品和普通塑料产品。混合在一起处置后，无法有效降解，反而增加了普通塑料回收的难度。
In addition, the current garbage classification cannot effectively distinguish between biodegradable products and ordinary plastic products. After being mixed together for disposal, it cannot be effectively degraded, which increases the difficulty of recycling ordinary plastics.
因此，生物降解塑料袋取代普通塑料袋还需要一段时间。但是，这种趋势不会改变，因为生物降解塑料袋的材料组成主要由PLA(聚乳酸)和PBAT(聚己二酸)组成。它们是公认的环保材料和无害的绿色产品。在工业堆肥的条件下，180天就可以降解成水和二氧化碳，直接进入土壤被植物吸收，对环境没有任何影响。它们真的来自自然，回归自然。

Therefore, it will take some time for biodegradable plastic bags to replace ordinary plastic bags. However, this trend will not change, because the material composition of biodegradable plastic bags is mainly composed of PLA (polylactic acid) and PBAT (polyadipic acid). They are recognized as environmentally friendly materials and harmless green products. Under the condition of industrial compost, it can be degraded into water and carbon dioxide in 180 days, and directly enter the soil for absorption by plants, without any impact on the environment. They really come from nature and return to nature.
可降解塑料袋可以放进冰箱吗？答案是肯定的。可降解塑料袋放在冰箱里不会产生有害物质，因为其原料是从玉米等植物中提取的，天然无毒，不会因为低温而提前降解。
Can degradable plastic bags be put into the refrigerator? The answer is yes. The degradable plastic bag will not produce harmful substances when placed in the refrigerator, because its raw materials are extracted from corn and other plants, which are naturally non-toxic and will not be degraded in advance due to low temperature.
一袋蔬菜分别用普通塑料袋和可降解塑料袋包装，放入冰箱。结果表明，可降解塑料袋还具有保鲜功能。用可降解塑料袋包装的蔬菜，在同样的时间内，明显比用普通塑料袋包装的蔬菜新鲜，这也是可降解塑料袋的功能。
A bag of vegetables is packed in ordinary plastic bags and degradable plastic bags respectively and put into the refrigerator. The results showed that the degradable plastic bag also had the function of keeping fresh. Vegetables packed in degradable plastic bags are significantly fresher than those packed in ordinary plastic bags at the same time, which is also the function of degradable plastic bags.
因此，与普通塑料袋带来的潜在危害相比，生物降解塑料袋将为提高人们的生活质量和改善环境做出更多贡献。
Therefore, compared with the potential hazards brought by ordinary plastic bags, biodegradable plastic bags will make more contributions to improving people's quality of life and improving the environment.