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Wax melts
All Containers›Shop by use case›Wax melts›Tools and directories›The check, before the first production pourShop all wax melts →
Tools and directories

The check, before the first production pour

By Dwight Davis, Founder

Updated

On this page8
Five questions. Two are measurements and three are arithmetic, and none needs a laboratory.

One: what is your pour temperature, and what is the jar rated to?

Your real figure against the container’s published maximum fill temperature. PET is 120 F here, PP 240 F and glass 300 F. If your pour is above the rating, the container is wrong and nothing downstream fixes it.

Two: what does a filled unit weigh?

Weighed, not computed from capacity. Fill the way production will fill, let it set, and weigh the wax. That number is the declaration, and it moves whenever the wax or the fragrance load moves.

Three: is the declaration in the right units and the right place?

Weight because the commodity is solid, both avoirdupois and metric, ounces under a pound, on the principal display panel as a distinct item with the specified separation, and only the listed abbreviations and symbols.

Four: does the type size pass for this panel?

Compute the panel area, 40 percent of height times circumference for a round jar, then take the minimum height from the band it falls in. Check the lower case o, and check the letters are not more than three times as high as they are wide.

Five: is it a multiunit package?

If you sell several identical units together, the declaration states the count, the quantity of each and the total. And decide whether the inner units are sold separately, because that decides whether they each need a compliant label.

Keep the working, not just the answers

The pour temperature, the weighed fill, the computed panel area and the band you landed in. A reformulation or a new size then takes minutes to recheck instead of being taken on trust.

Five answers on one page, kept with the batch record

Pour temperature, weighed fill, declaration string, computed panel area and pack format. Filed together they make a reformulation a half-hour recheck; filed nowhere they make it a decision taken from memory.

References

16 CFR 500.7, Net quantity of contents, method of expression, which requires the declaration to be in fluid measure if the commodity is liquid and in weight or mass if it is solid, semi-solid or viscous, unless a firmly established general consumer usage and trade custom says otherwise. law.cornell.edu
16 CFR 500.8 and 500.9, on units of weight or mass and how they are expressed: both avoirdupois and SI metric, in ounces if under a pound, with worked examples such as "Net Wt 15 oz (425 g)". law.cornell.edu
16 CFR 500.20 and 500.21, on conspicuousness and on type size against the area of the principal display panel, which for a cylindrical container is 40 percent of height times circumference. law.cornell.edu
16 CFR 500.25 and 500.27, on permitted variations from the stated quantity and on how a multiunit package declares the count, the quantity of each unit and the total. law.cornell.edu
Written from federal regulation and from the catalog’s own material data, not from a pouring bench. Net quantity rules are federal and state weights and measures officials enforce their own programs alongside them. Anything here is a starting point rather than clearance for a specific label.