How Are Pre-Rolls Different From Flower? | Pop's Cannabis

Quick answer

Flower is dried cannabis bud sold by weight. A pre-roll is plant material ground and rolled into paper, sold as a finished unit. The plant is the same. Format, moisture, burn rate, price per gram, and label math differ.

how are pre rolls different from flower

Format and weight

Flower sells by the gram, eighth (3.5 g), quarter (7 g), and ounce (28 g). You grind it at home. A pre-roll is a fixed unit. Common weights are 0.5 g, 0.7 g, and 1 g. Multi-packs hold 2 to 10 units. Most pre-rolls use unbleached hemp, rice, or wood pulp paper. Some add a filter tip. Some add hash, kief, or oil. Those are labeled infused.

cannabis flower and pre roll cost comparison

What goes inside

Not every pre-roll uses top bud. Budget pre-rolls often hold trim, shake, or smalls left over from trimming. Higher-tier pre-rolls print "whole flower" on the label. If the label does not say whole flower, assume trim. Flower buyers see the bud before purchase. Pre-roll buyers see paper.

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Moisture and burn

Flower keeps best at 58% to 62% relative humidity. Bud at that range grinds well and burns slow. Pre-rolls are ground before packaging, which speeds moisture loss. Older pre-rolls burn hot and fast, and the smoke tastes harsh. A stale pre-roll can canoe, meaning one side burns ahead of the other. Flower you grind at home holds terpenes longer.

Dose and label math

Flower labels show THC percentage by weight. A gram of 20% THC flower holds about 200 mg of THC. Pre-roll labels vary by state. Some list total THC for the whole unit. Others list a percentage. A 1 g pre-roll at 20% holds about 200 mg total, but combustion destroys part of it. Inhaled dose runs lower than the label number. Two 0.5 g pre-rolls from the same batch can hit differently because the grind and the pack are not identical.

Price

Flower costs less per gram. Pre-rolls carry labor, paper, packaging, and testing costs. Expect pre-rolls at 1.5 to 3 times the per-gram price of flower from the same brand. A $45 eighth (3.5 g) works out to $12.86 per gram. A single 1 g pre-roll at $12 to $18 costs more per gram than the flower it came from.

Storage and shelf life

Store flower in an airtight glass jar in a cool, dark place. Add a humidity pack to hold 58% to 62%. Flower keeps 6 to 12 months with good storage. Pre-rolls dry out faster. Smoke them within 2 to 4 weeks of purchase. Do not refrigerate either one.

Which one to buy

• Buy flower for control over grind, pack, and dose.
• Buy pre-rolls for convenience and no gear.
• Check the label for whole flower, harvest date, and THC listed per unit or per gram.
• Ask for the package date. Fresh stock matters more than brand.