diff --git a/induttore1/app1.py b/induttore1/app1.py
index 4ed9a95..71d1544 100644
--- a/induttore1/app1.py
+++ b/induttore1/app1.py
@@ -1,3 +1,4 @@
+import re
 import pandas as pd
 import numpy as np
 import matplotlib.pyplot as plt
@@ -9,7 +10,17 @@ ROOT = Path(__file__).parent.parent
 df = pd.read_csv(ROOT / "data.csv")
 df["time_s"] = df["time since start [ms]"] / 1000.0
 
-T_INF  = 22.99   # temperatura ambiente [°C]
+def _leggi_t_inf() -> float:
+    report = ROOT / "start" / "report.md"
+    if not report.exists():
+        raise FileNotFoundError("start/report.md non trovato. Esegui prima 'Calcola T ambiente'.")
+    m = re.search(r"media ponderata\*\*\s*\|\s*\*\*([0-9.]+)\s*°C",
+                  report.read_text(encoding="utf-8"))
+    if not m:
+        raise ValueError("T∞ non trovata in start/report.md.")
+    return float(m.group(1))
+
+T_INF = _leggi_t_inf()  # temperatura ambiente [°C], letta da start/report.md
 T0     = 110.81  # inizio intervallo [s]
 T_END  = 111.56  # fine intervallo [s]
 
diff --git a/induttore2/app2.py b/induttore2/app2.py
index 2bdf366..5ba6f57 100644
--- a/induttore2/app2.py
+++ b/induttore2/app2.py
@@ -1,3 +1,4 @@
+import re
 import pandas as pd
 import numpy as np
 import matplotlib.pyplot as plt
@@ -9,7 +10,17 @@ ROOT = Path(__file__).parent.parent
 df = pd.read_csv(ROOT / "data.csv")
 df["time_s"] = df["time since start [ms]"] / 1000.0
 
-T_INF = 22.99   # temperatura ambiente [°C]
+def _leggi_t_inf() -> float:
+    report = ROOT / "start" / "report.md"
+    if not report.exists():
+        raise FileNotFoundError("start/report.md non trovato. Esegui prima 'Calcola T ambiente'.")
+    m = re.search(r"media ponderata\*\*\s*\|\s*\*\*([0-9.]+)\s*°C",
+                  report.read_text(encoding="utf-8"))
+    if not m:
+        raise ValueError("T∞ non trovata in start/report.md.")
+    return float(m.group(1))
+
+T_INF = _leggi_t_inf()  # temperatura ambiente [°C], letta da start/report.md
 T0    = 112.02  # inizio intervallo [s]
 T_END = 113.95  # fine intervallo [s]
 
diff --git a/induttore3/app3.py b/induttore3/app3.py
index 271938a..25f8199 100644
--- a/induttore3/app3.py
+++ b/induttore3/app3.py
@@ -1,3 +1,4 @@
+import re
 import pandas as pd
 import numpy as np
 import matplotlib.pyplot as plt
@@ -9,7 +10,17 @@ ROOT = Path(__file__).parent.parent
 df = pd.read_csv(ROOT / "data.csv")
 df["time_s"] = df["time since start [ms]"] / 1000.0
 
-T_INF    = 22.99   # temperatura ambiente [°C]
+def _leggi_t_inf() -> float:
+    report = ROOT / "start" / "report.md"
+    if not report.exists():
+        raise FileNotFoundError("start/report.md non trovato. Esegui prima 'Calcola T ambiente'.")
+    m = re.search(r"media ponderata\*\*\s*\|\s*\*\*([0-9.]+)\s*°C",
+                  report.read_text(encoding="utf-8"))
+    if not m:
+        raise ValueError("T∞ non trovata in start/report.md.")
+    return float(m.group(1))
+
+T_INF    = _leggi_t_inf()  # temperatura ambiente [°C], letta da start/report.md
 T0       = 115.0   # inizio intervallo [s]
 T_END    = 133.7   # fine intervallo [s] — ultimo campione nel dataset
 W0_START = 115.9   # inizio zona esclusa [s]  (None = nessuna esclusione)