Sonic coupons are good until the expiration date printed on the coupon. In the absence of an expiration date, it is up to the individual store to determine if it is valid.
A check is typically good for six months before it expires.
Most likely it is valid. Most stores start and end coupon dates at Midnight.
StarSan is typically good for about 1-2 years before it expires.
Masa is typically good for about 3-6 months before it expires, depending on how it is stored.
An Ancestry DNA kit is typically good for about a year before it expires.
Active dry yeast is typically good for about 2 years before it expires.
Pizza dough is typically good for about 1-2 days in the refrigerator before it expires.
Simple syrup is typically good for about one month when stored in the refrigerator before it expires.
Lactaid milk is typically good for about 7-10 days after the sell-by date before it expires.
Coconut milk is usually good for about 7-10 days in the fridge before it expires.
Grenadine is typically good for about 6 to 12 months before it expires, depending on the brand and storage conditions.
Elderberry syrup typically lasts for about 1 year before it expires.