MogV Math: The Art of Pivoting Between Monk Fruit Grades

By Thom King, CFS, Founder and Chief Innovation Officer, Icon Foods

When Monk Fruit Math Gets Real

In the world of clean-label sugar reduction, monk fruit extract is one of those ingredients that makes formulators feel like alchemists – just the right dose and suddenly everything clicks. But as with any natural extract, the potency depends on the grade, specifically the mogroside V (MogV) content.

When you pivot from one grade of monk fruit to another – say from a V40 to a V25 – you’re essentially swapping purity levels of MogV. That means you can’t just substitute gram-for-gram and call it a day. You’ve got to do the math to keep your sweetness equivalency consistent and avoid a “where’d the sweetness go?” moment on the bench.

The Ratio Rule: Keeping MogV Consistent

Think of MogV as the true measure of monk fruit’s sweetness horsepower. The higher the MogV percentage, the more potent the extract. So, when you drop from V40 to V25, you’re moving from a 40 % MogV content to 25 %. To maintain the same MogV concentration in your formula, you’ll need to increase your inclusion rate proportionally.

Based on the principle of maintaining the same concentration of an active ingredient (MogV), the inclusion rate of a less potent extract must increase proportionally. The formula for the new inclusion rate is:

New inclusion rate = (Old MogV % ÷ New MogV %) × Old inclusion rate

That means you’ll need 1.6 times more monk fruit when converting from V40 to V25.

Variables

• Old MogV Percentage: The MogV percentage of the original, more potent extract.
• New MogV Percentage: The MogV percentage of the new, less potent extract.
• Old Inclusion Rate: The required inclusion rate for the original, more potent extract.
• New Inclusion Rate: The adjusted inclusion rate for the new, less potent extract.

Example calculation

Suppose your original formula uses 1% of a V40 extract (40% MogV). To achieve the same potency with a V25 extract (25% MogV), you would use the following calculation:

New inclusion rate = (40% ÷ 25%) × 1%
New inclusion rate = 1.6 × 1%
New inclusion rate = 1.6%

This means you would need to use 1.6% of the V25 extract to maintain the same final concentration of MogV that you had with the original 1% of V40 extract.

Example: Translating Formulas in Real Life

Let’s say your formula calls for 0.8 % V40 monk fruit extract.

• V40 has 40 % MogV, so 0.8 % × 0.40 = 0.32 % MogV in your formula.
• To achieve the same 0.32 % MogV using V25 (25 % MogV):
  0.32 ÷ 0.25 = 1.28 %
  So, your new inclusion rate for V25 extract is 1.28 %.

That’s the beauty of the math – it’s simple proportional scaling based on purity. Here’s quick start table to make life easier.

Monk Fruit Conversion Table

How to use:

• Locate your current grade in the left-hand column.
• Find your new grade across the top row.
• Multiply your current inclusion rate by the intersecting factor.

Example: moving from V30 → V40, multiply your current inclusion by 0.75.
Moving from V50 → V25, multiply by 2.0.

This keeps MogV concentration consistent across grades, ensuring flavor, sweetness, and balance remain intact.

Why You Might Pivot in the First Place

There are several practical reasons why a formulator might switch between grades:

• Supply chain shifts: Higher grades (like V40 or V50) can experience tighter availability or longer lead times.
• Cost optimization: Lower-grade monk fruit can reduce cost-in-use without major sensory trade-offs – if properly adjusted.
• Blending flexibility: Sometimes you want to balance potency with better dispersibility or less lingering sweetness.

Being nimble between grades is not just good formulation hygiene – it’s a strategic hedge against volatility. When one spec tightens up, your R&D bench shouldn’t grind to a halt.

Practical Tips for Smooth Transitions

• Document your conversions. Maintain an internal conversion chart across all monk fruit grades (V20, V25, V30, V40, V50, etc.).
• Run a quick sensory check. Even with perfect math, flavor profiles can shift slightly between grades due to minor compositional differences in the non-MogV matrix.
• Adjust for solubility. Higher MogV extracts can be more hydrophobic and sometimes clump or foam during hydration. Adjust mixing shear and temperature accordingly.
• Communicate with procurement. Ensure your supply chain team knows which grades are interchangeable under your SOPs to avoid panic buying or over-spec’d sourcing.

Final Takeaway

The key to working smart with monk fruit isn’t just knowing your sweeteners – it’s knowing your sweetener math. Formulating with monk fruit is like driving a high-performance car: once you understand the ratio between MogV content and inclusion rate, you can shift gears confidently, no grinding required.

Since 1999, Icon Foods has been your reliable supply-chain partner for sweeteners, fibers, sweetening systems, inclusions, and sweetness modulators.

Reach out to your Icon Foods representative for a beverage formulating toolkit with samples, documentation, and formulation guidance for: MonkSweet™ Monk Fruit extracts both conventional and organic. Taste the Icon difference.

Related reading: Monk Fruit Market Intelligence Bulletin: 2026 Harvest Update and 2027 Supply Outlook, A Formulator’s Field Guide to MonkSweet™ Monk Fruit Systems and MonkSweet™ LS4 vs. V25, V40, V50.