Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to buy kefir grains [title] Determine whether you want to buy fresh kefir grains or powdered kefir cultures. [step] Fresh kefir grains are the preferred choice for people who prepare kefir regularly. These grains can be continually propagated with minimal effort, so you only ever need to buy them once.

Ending1: [substeps] Fresh kefir seeds only come in 3 fresh to err. Powdered kefir grains can be purchased from either fresh red peppers or powdered ramekins. Ending2: [substeps] If you use debaters to buy kefir, you're not able to extract a whole kefir version. However, you can harvest kefir from storing foods such as canned beans, ice cream, produce, and cooked foods and produce. Ending3: Dried (kefir is hard but still absorbs many combats from the foods it eats), kefir diets are trans-processed and often cow's milk. Wheat the labels and source food allergens are soonized from the food. Ending4: Powdered cultures, consisting of dormant yeast and bacteria, are a more convenient option that can be stored easily and do not have to be monitored. However, the powdered form does expire and needs to be repurchased periodically.

Answer format: ending1/ending2/ending3/ending4