Flavour and fragrance blends

[Mike Dewhirst]

AICIS Guidance

AICIS guidance is absolutely clear that no matter what chemicals are in a low-risk flavour or fragrance blend, they are only interested in individual chemicals being introduced in the blend.

The word blend is synonymous with mixture albeit understood to be a sub-mixture within a mixture - or formulation.

Chemintro current design

Individual chemicals need to be separately introduced. This design should not be changed for low risk flavour or fragrance blends because it satisfies current AICIS rules and guidance.

The saving grace for the current design is that it is simple and the same chemical can be used in multiple products delivering proper information management.

It is vital that this design feature does not change

Chemintro redesign impetus

Data entry in Chemintro becomes, however, quite onerous for formulators who work with multiple blends in varying proportions in different products.

There is a Chemintro redesign impetus to ease data entry by using prepared blends of chemicals to formulate products directly instead of, or together with, individual chemicals.

Redesign requirements

• A chemical needs to be selectable to construct a blend

• Different blends may contain the same chemicals in different proportions

• A blend needs to be selectable alongside chemicals in a product

• Multiple different blends in varying proportions may be used in the same product

• A blend must transform into a set of actual chemicals making up a product

• Any particular chemical can only appear once in a product

Blend user interface

• Main Menu section labelled Blends with Add a new Blend

• Enter a Blend name

• In a sub-section Add another chemical select an existing Chemical - but not an existing Blend - as the new ingredient

• Enter the Precise proportion of the Chemical in that Blend

• Repeat, adding chemicals until the Blend is complete (<= 100%) and [Save]

Product user interface

• Add or select a Product

• Scroll down and click Add another Product-chemical proportions

• Select blends before selecting chemicals because saving a Product with a Blend will automatically add all the chemicals in the blend at the correct proportions.

• Select additional chemicals as required. If one of the blend related chemicals needs to be "added" it will already be there so just increase its Proportion and adjust its Max concentration accordingly.

• On saving, any blends involved will be scanned and proportions of chemicals common to multiple involved blends will be summed pro rata per the Blend proportion in the Product. Likewise, max concentrations will be recalculated.

• If the ingredient chemicals calculated proportions and max concentrations exceed the existing values it means one or more blends containing some of the same chemicals were added and so the larger values will be used to update those chemical proportions and max concentrations. Otherwise, a human must have manually increased the value - hence they will not be updated.

[Mike Dewhirst]

Edited to clarify