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Yes, sweet potato skin is edible. Wash the potato thoroughly under running water and scrub the firm surface before cooking; do not use soap or detergent. Leaving the skin on keeps additional fiber and reduces waste, although damaged, rotten or unpleasantly tough areas should be removed.
Raw egg whites can be frozen as they are and retain their functionality well. Yolks also freeze, but they tend to thicken and gel: for about four yolks, mix in 1/8 teaspoon salt for savory use or 1½ teaspoons sugar for desserts. Never freeze whole eggs in their shells.
Among common fresh fruits, guava provides about 2.6 g protein per 100 g, passion fruit about 2.2 g and avocado about 2.0 g. Those are high within the fruit category but low compared with beans, dairy, eggs, fish or meat, so fruit usually adds protein rather than serving as the main source.
Yes, cheese can be frozen, but quality depends heavily on the style. Hard and semi-hard cheeses generally tolerate freezing better, while soft and high-moisture cheeses may separate or turn grainy. Freeze tightly wrapped portions and thaw in the refrigerator with the final use in mind.
Most rinds created during ripening — natural rinds, bloomy rinds such as Brie and washed rinds — are edible. Wax, paraffin, plastic, plasticoat and other artificial coatings should be removed. When the surface is ambiguous, the package label is the best guide.
The throat sting in many virgin olive oils, especially fresh oils from greener fruit, is normal and can be a positive sensory attribute. Oleocanthal is one compound involved: it activates TRPA1 sensory receptors and creates a distinctive pharyngeal pungency. It is not the same thing as the oil's free-acidity number.
Yes, the white fat on Iberian ham is edible. It is subcutaneous fat that contributes to the ham's flavor and texture. Leave it on if you enjoy it, trim some if you want a leaner serving, and treat unusual rancid odor or flavor as a separate quality issue.
Cooked white rice provides about 130 calories and 28 g carbohydrate per 100 g, with very little fat and fiber. Dry rice looks far more calorie-dense per 100 g because cooking adds water and spreads the same energy across a heavier portion.
Opened cheese should go back into the refrigerator protected from drying and contamination. Hard cheese keeps best when wrapped without trapping heavy condensation; soft and fresh cheese should stay covered and be used sooner. The cheese type matters as much as the date you opened it.
Yes, cooked shrimp can be frozen. Freeze them while they are still safely handled, package them with little air, keep the freezer at 0°F (-18°C) or below, and thaw in the refrigerator when possible. Freezing cannot correct seafood that already spent too long warm.
Yes, you can eat pasta the next day if it was refrigerated soon after cooking and kept cold. The risk is driven more by time spent warm than by the fact that 24 hours have passed. For properly chilled leftovers, USDA uses a 3-to-4-day refrigerator window.
Cheese does not melt well simply because it contains fat. Smooth melting needs a casein network that can soften without breaking, enough moisture, and the right balance of acidity and calcium. Age matters too: younger cheeses are usually more fluid and stretchy than very dry, long-aged cheeses.