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The world's first systemised Job Change Tool — now live

Built by operators who have run every hot-end position.

The world's first systemised Job Change Tool.

We audit your IS machines, your forehearths, your job changes, your meetings, and your KPIs — then install the system that runs without us.

Vendor-neutral NDA-ready Worldwide
One operator · entire line · live KPIs
150+
Years of collective hot-end experience on the team
80+
Countries where we have supported container glass operations
1ˢᵗ
World's first systemised Job Change Tool
<90d
Typical payback window on floor engagements

Job change is the single largest controllable source of hot-end downtime and rejects in container glass plants. Cross-shift variance on the same SKU is typically 30–60%. A 1% efficiency lift is worth millions in EBITDA.

Most plants chase it with paper checklists, tribal knowledge, and a vendor sales deck. We fix it from the inside.

— Lean Glass
Why vendor-neutral matters

No equipment. No commissions. No conflict.

We don't sell IS machines. We don't sell furnaces. We don't sell inspection equipment. Every other 'consultant' in container glass has equipment to sell. We have findings, methodology, and a system. That's the difference between an audit and a sales call.

Other consultancies
Sell equipment
  • Vendor commissions
  • Tied OEM partnerships
  • Findings shaped by what they sell
  • Audit doubles as a sales pipeline
Lean Glass
Independent
  • No equipment for sale
  • No OEM commissions
  • Findings ranked by EBITDA, not invoice
  • Audit is the product, not the lead-gen
How we work

Diagnose · Prove · Scale · Sustain.

The same four phases every time. The depth and speed change with your situation — the discipline doesn't.

01

Diagnose

On-site and remote across forming, forehearth, line coordination. We read your data and walk your floor before we open our mouths.

02

Prove

Pilot on one line with a crew that helped build the approach. Movement on the number, not a slide.

03

Scale

Line-by-line rollout with your internal coaches leading. We train the trainers and hold the standard.

04

Sustain

Dashboards, audits, and coaching cadence that keep the gains. The test is month 12, not week 6.

Outcomes

Six things your floor feels in the first quarter.

You will not need a consultant to tell you whether it's working. The floor will tell you first.

Faster Production

Throughput lifts that show up on the scoreboard, not just the spreadsheet.

Steadier Operations

Fewer jam-ups, shorter stops, less hero-maintenance at 2am.

Lower Defects

Root-cause fixes on the top defect modes — not symptomatic tinkering.

Clear KPIs

One source of truth from operator handheld to VP Operations.

Safer Plants

Digital audits with evidence, escalation that sticks, housekeeping that holds.

Engaged Crews

Standards your crews helped build — so they follow them without a memo.

The work

Every corner of the plant, every shift.

Our practitioners have stood in front of these lines and solved the problems they throw at you. This is where we earn our fee.

Molten glass being formed by a craftsman at a furnace
Forming · forehearth · coating
Hot end
Glass bottles on a production line machine
Inspection · packaging · pack-to-melt
Cold end
Factory filled with industrial production machines and equipment
Operational excellence
Plant floor
Modern manufacturing plant machine with automated forming
Section timing · automation · control
IS machines
Client voices

What plant leaders say.

Engagements are typically under NDA — quotes are verifiable on request.

"They walked the floor, talked to our crews, and gave us a plan we could actually run. Changeovers are down 38%, first-hour yield is up 15 points."
VP Operations
Container glass manufacturer, Southeast Asia
"We had six spreadsheets reporting OEE differently. Now we have one dashboard and the debate is about what to fix, not whose number is right."
Plant Director
Beverage glass producer, Europe
"Independent due diligence that looked past the data room. They found two operational risks the seller hadn't flagged — and the deal structure reflected it."
Investment Director
Industrial PE firm, North America

30-minute call with a senior practitioner.

Bring a problem — leave with a direction.