I was invited to sit in on a packaging spec review at a regional food manufacturer last quarter. Their spec sheet hadn't been seriously revised since 1994. Their packaging engineer had taken the job in 2019. He inherited the spec sheet and treated it as a regulatory artifact rather than an editable document.
What the spec sheet said
The 1994 spec required: brand-new HDPE 275-gallon IBC totes, FDA-grade resin, virgin material only, single-use only, single supplier — a company that had been acquired twice since 1994 and was now a regional distributor of one of the largest packaging conglomerates in the world.
What the spec sheet didn't say
The reasons for any of those constraints. The engineer who wrote the spec in 1994 had specific reasons for each constraint — but those reasons existed in his head and in conversations that didn't make it into the document.
What was actually true in 2022
- "Brand-new" was specced because in 1994 the reconditioning industry was small and inconsistent. By 2022 it was a mature industry with chain-of-custody documentation that didn't exist in 1994.
- "Virgin material" was specced because of a recall in 1989 traced to mixed-resin tote walls. The industry had standardized FDA-grade HDPE by 2003.
- "Single-use only" was specced because of internal cleaning capacity in 1994. The plant had added a CIP loop in 2007 that made multi-use trivially safe.
- "Single supplier" was specced because of a contract clause that had been renegotiated out in 2011.
In other words, every single constraint on the spec sheet had been answered by reality, but the spec sheet hadn't been updated to reflect it.
What the engineer was rightly worried about
He didn't want to be the engineer who removed a constraint from a 28-year-old spec sheet and then discovered why it was there. So he kept everything.
I get it. But the cost of carrying a stale constraint compounds. They were spending roughly $48,000 a year on new totes for an application that would have been better served by reconditioned at roughly $11,000 a year. Over 28 years that delta is more than a million dollars.
The fix
We helped them rewrite the spec sheet in 2023. The new version cites the source of every constraint — quality, regulatory, contractual, supply-chain — and includes a sunset date for any constraint that's older than five years and hasn't been re-validated.
The first round of sunset reviews led to switching half their fleet to reconditioned and saving roughly $24,000 in year one.
Spec sheets are documents. Documents need maintenance. If your spec hasn't been edited in five years, somebody is paying for an assumption that may have stopped being true.