Halacha: What Blessing Do We Recite on a Pomegranate?

On the pomegranate we recite "borei pri ha'etz" (first blessing)

And after eating, we recite "al ha'etz" (last blessing)

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Portion sizes necessary to say the last blessing (from "Halacha Yomit" based on rulings of Rabbi Ovadia Yosef, of blessed memory):

For anything a person eats, they must recite a "first blessing," such as "shehakol" or "ha'etz." Even if consuming only a small amount, a blessing is required, as long as it is eaten for the sake of eating. (However, if tasting something merely to adjust seasoning, no blessing is needed.) Therefore, someone chewing flavored gum, even if swallowing very little, must still say a blessing for the pleasure of the flavor. Similarly, when drinking something, a blessing is needed even for just one drop.

This applies specifically to the first blessing. The last blessing is recited only when a "significant consumption" has occurred, which for food is the size of an "olive," equating to twenty-seven grams, and for beverages, a "revi'it," which equals eighty-one grams.

Additionally, the eating or drinking must occur within a timeframe where the consumption is considered continuous. If someone eats an "olive" portion of bread throughout an entire day, bit by bit, they cannot recite the grace after meals. The olive-sized portion must be consumed within the timeframe of "achilat pras," with differing views on the duration; some say five minutes, others say around seven and a half minutes (with more opinions on this matter). Therefore, it is advisable to consume the olive-size (especially during Shabbat meals) within four and a half minutes to satisfy all perspectives.

For a last blessing on a drink, one must consume a revi'it of the beverage (eighty-one grams) in one go; if there are breaks between sips, no blessing is recited. Therefore, someone eating soup with a spoon does not say the last blessing because they didn't drink a revi'it at once. Similarly, someone drinking hot coffee or tea doesn't recite the last blessing as it's impossible to drink it all at once.