Appearance and odor: white powder and no odor.
外观和气味：白色粉末，无气味。
The “use-by” or “best if used-by” date indicates the last day that the item is at its best quality as far as taste, texture, appearance, odor, and nutritional value. The decline after that is gradual.
“有效使用期”或“最好于该日期前使用”表示的是该产品在这个日期前，从口感、质地、外观、气味和营养价值等各方面保质着最佳质量，过期之后质量就会逐渐下降。
Organoleptical Requirements: the product shall have a typical appearance, odor, flavor, texture without offensive odor and flavors.
感观质量要求：产品必须有符合本产品的典型的外观，气味，口味，没有任何难闻的气味。
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